Mold for forming blocks of cork.



F. R. METZ & E. HORNSTEIN MOLD FOR FORMING BLOCKS 0F CORK.

APPLICATION FILED JULY 3| 1913.

Patented May 18, 1915.

Fig. 5. I

mam r N I W vlEItI131E121CH ELUDOLZ" METZ AND EMZL HOENSTEIN, 0FMilDLL'NG, NEARR VIENNA, AUSTRIA-HUNGARY, ASSIGNOES TO THE FIRM OEAKTIENGESELLSCHfaET Ffi'B, Ih'lENTIERTE KOBKSTEHQ'FABRIIMTXON UNI)KORKSTEIN-BAUTEN VORMALS KLEINER & BOKTYIAYER, OIJ VIENNA,AUSTRIA-HUNGARY.

MOLD FUR FORM-ENG- BLOGKS OF CORK.

Original application filed May 14, 1912, Serial No. 897,

Serial 1%.

7 b all 11:72 om it may concern: I

Be it known that we, Fmnonroii RUnoLr Marx and Dr. Er rrn HORNSTEIN,subjects of the Emperor oi Austriallungary, residing at Modling, nearVienna, in the Province of Lower Austria and Empire of Austria-Hungary,have invented certain new and useful Improvements in Molds for FormingBlocks of Cork, of which the following is a specification.

The subject matter of this invention is a mold for manufacturinginsulating blocks or the like of cork, e. made of comminuted cork with abinding medium, 8. g. pitch. If the mixture of cork particles and pitchis hardened Within the mold the block adheres to the Walls of such moldin such a manner, that it is impossible to remove the block from themold Without destroying the block.

According to this invention the knockdown or collapsible mold,consisting of a frame, covered on its two opposite sides by removablesieves or the like pervious to the binding material, contains on theinner surface of the frame removable linings of a liexible'or elasticmaterial e. 7. of steel strips, sieves or the like. These sieves andlinings adhere to the block formed in the mold and may be Withdrawntogether with the hardened block from the frame after the coveringsieves having been pulled off and thereafter these linings are pulledoil" from the block. The frame itself may also be knockdown orcollapsible, in order to facilitate the removing of the hardened blocktogether with the linings.

A mode of construction of the mold is shown in the accompanying drawingin which Figure 1 is an elevation, partly dismantled. Fig. 2 is a crosssection and Fig. 3 shows a view of a sieve supporting frame.

The mold consists of a frame which may he preferably knockdown orcollapsible, of two sheets covering the two opposite open sides of theframe and of two frames for fixing and supporting the said sheets to thefirst named frame. This latter frame consists of two parts 1 and 2,provided with hooks 3 and i engaging with bolts 5 and 6 of the part 7,so that the parts 1. and 2 may Specificatioilhf LettersFatent.

Patented May 1%, 3155 2315.

318. Divided and this application filed July 3, 1913. 72?,140.

be turned around the bolts 5 and 6 and also removed from the part 7 atwill. The free ends of the parts 1 and 2 kept together by the part 8,when the mold is closed.

The inner surfaces of the parts 1, 2, 7 and 8 are lined with 1 and 12 ofa flexible material, 0. g. With steel strips or metal sieves or thelike.

The open opposite sides of the frame 1, 2., 7 and 8 are covered byflexible perfiorated metal sheets or sieves 13 and 14 and these sheetsor sieves are supported by frames 15 'and 16 to be fixed to the frame 1,2, 7, 8

by any suitable means, as e. g. by bolts or the like, means which allowan eas; connecting and disconnecting of the frames. The handles 17, 18,19 and 20 facilitate carrying the mold and hanging it on an elevator, inorder to dip the mold into a bath of a liquefied binding material, a g.pitch and to remove it again therefrom.

After the mold isassembled Without the part 8, cork particles 21 arefilled into the free space between the frame 1, 2, 7 and the sheets 13and let. Also reinforcements of iron, Wood or the like for the block tohe strips or linings 9, 10,

formed mav he ut in to ether with the which may enter into the interiorof the.

mold and into the interstices between the cork particles through theperforations of the sheets 13 and 14-. After a short period the mold israised from the bath and remains closed till the binding material ishardened. Then the mold is dismantled by removing subsequently the parts15, 16, 8, 1, 2 and 7 whereupon the sheets 13 and 14: and also thelinings 9, 10, 11 and 12 adhering to the block formed in the mold arepulled oil from the block and the process is completed. The mold ,may beassembled again, charged with cork and the process repeated.

One of the sheets 13 and 14 may be imperiorate, if desired.

This application is filed as a divisional application under our pendingparent application Serial No. 697,313, filed May 14:, 1912.

Having now particularly described ahd ascertained our invention, What eclaim is;

A knockdown or collapsible mold for perforations in which flows thebinding ma- 10 forming blocks composed of comminuted terial into andfrom the mold.

w cork and an adhesive binding material, said In testimony whereof weaffix our signamold comprising walls readily separable one tures inpresence of two witnesses.

' from another; flexible lining strips for lin- FRIEDRICH RUDOLF METZ.

ing the inner surfaces of said walls, said DR. EMIL HORNSTEIN.

flexible lining stri s being susceptible of Witnesses:

being readily torn rom the hardened mold- AUGUST FUooEn,

ed block; and'a perforate wall through the SHJGFRIED NENTRAL

